Philips SM30 manual System Operation, Typical Operation, Activation of Control Relays

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2 SYSTEM OPERATION

SM30 Sound Management System presents the operator with a logical, comprehensive, and easy to use method of routing and broadcasting calls, announcements, pre- recorded messages, and music.

SM30 is easy to use and logical in its operation, but it is perhaps helpful to understand, in principle, how the system works.

A Typical Operation

Herewith a typical series of actions, initiated by the person (“the operator”) making an announcement, a paging call, etc., and carried out by the system.

1The operator selects in which loudspeaker zones the call must be broadcast. This is done by simply typing in the number of each desired zone using the Numeric Keypad of the Call Station. The Zone Routing Indicator LEDs for these zones will illuminate.

2The microprocessor, which is continu- ously monitoring the system, sees which key is pressed. First it looks to see whether another call is currently being broadcast. If so, the processor activates a flashing ‘BUSY’ LED on the call station.

3When the ‘PRESS TO TALK’ key is pressed, the processor checks which priority rating each Call Station, Function Key, microphone, etc., has been given, and if the original caller has a lower priority than the one being made, its call will be muted and overridden by the new caller. If the call being made has the same, or a lower priority than the original caller, the new call will be ignored, and the ‘BUSY’ led will be constantly illuminated to advise the operator that the call has been aborted.

Pressing the ‘REDIAL’ key will automati- cally reselect the zones which were last selected, eliminating the need to type them in again.

4If all is clear, the processor mutes any music signal which may be broadcast in the zone(s). Music routed to any other zones will not be affected.

5The processor checks which attention tone has been programmed to precede an announcement originating from the Call Station, then it switches on the built-in signal generator; selects a tone; and feeds it out to the amplifier input.

6If a message, recorded on the Recorded Message Module, has been programmed to precede a call, it will be broadcast after the attention signal, and before the call. Meanwhile the processor energises a flashing green ‘WAIT/TALK’ LED in order to tell the user that the call is going through, but that they will have to wait until the attention signal, or recorded message, has finished.

7The output signal of the amplifier is then input into the SM30 Control Centre, via its Zone Relay Module (a processor controlled routing/switching matrix), which routes it out again to the selected loudspeaker zones.

8When the announcement is completed and the ‘PRESS TO TALK’ key is released, the system returns to its idle mode, with the processor continually monitoring the system, until another call is made. If music was playing in the zone(s) it will return at its original volume level.

Activation of Control Relays

Generating a call could also activate a relay, or set of relays, which can be used to switch on (or off) external equipment.

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Contents SM30 Contents Introduction Control CentreProgramming Block diagram Signal generatorEmergency Power Supply +48 VDC SM30 plug-in modulesBlock diagram System Operation Typical OperationActivation of Control Relays Volume Control Override Relays Power on delayAlarm interrupt Signal description Alarm TonesTime signals ON/OFF Power Switch fig.4.1A Front panel controlsProgramming Keys fig.4.1C Alpha-Numeric LCD Display fig.4.1D Music Function Keys fig.4.1EPower Supply Module SM30 basic modulesLine Output Module Setting UP the Hardware GeneralOpening the housing Removing Module Blank PanelsMounting the Modules Voltage Setting Volt Emergency Power SupplyEarth Terminal ground Calculating Required Rack Space Mounting in a 19 rackRemoving Feet General RulesConnecting amplifiers One Channel System fig.5.5.2Rack Mounting 1 Two channel system 2 One channel system Balanced Line Level output Electret condenser microphoneBuilt-in Compressor Operating controls Numeric Keypad fig.6.1JCall Station ‘Press-To-Talk’ Key fig.6.1HLED Intensity Preset Installation Loudspeaker Zone TemplateAdjustments Using the Call Station Using the Keypad to make a CallPage Call Station Input Module CSM Installation Mounting in the Control CentreAdjustments Volume Level Controls Connection of Call StationsLine Input Facility Operation Remote Switching FunctionMicrophone Input Module MIM Bass Cut FacilityControl Input Module Adjustments Gain Control PotentiometersConnection of Microphones CIMWiring control inputs Direct routingHeadphone Monitoring Adjustments Output Volume ControlAutomatic Gain Control Microphone InputRecording a Message Safety FeaturesNumerical order, commencing with message Recording over an Existing MessageMUM Remote Location RecordingMusic Input Module Music Source InputsProgramming Software routing to zones Display music source statusZone Relay Module ZRMTerminations Coupling Zone Relay Modules Multiple Amplifier ConfigurationsControl Relay Module CRMWiring Control Relays Remote Volume Control OverridesInstallation Programming Power-on delayProgram step Selection User password ProgrammingSummary SM30 User Programming General User Programming ModeIntroduction User ProgramCall Stations Call Station number selection Signal number selectionMain menu selection Key Pad SelectionKey programming selection Key Signal number selectionFunction Key number selection Key Priority selectionKey Relay switching selection Key Music volume upKey Music volume down Key Music on/offMicrophones Microphone number selectionCall Routing to Zones Microphones Programming next microphoneControl input Control InputsControl input number selection Priority level selection inputControl Inputs Programming Control RelaysSM30 System Specification GeneralMains Supply Audio signal level diagram DL LMusic Routing Return to ‘RUN’ modeError Messages Music RoutingPage Supplement Instructions for installation Contents Installer programming stepsselection Extended Call Station ProgrammingSetup Language selection Installer modeSystem down Store hardwareDelay time Power-on DelayPOWER-ON Delay Music Input TextInput number selection Select LanguageAlternative Music Input Text Alternative text selectionConfiguration display Storing Hardware Selecting Amplifier ConfigurationStore Hardware Amplifier Configuration Altering selectionVolume Step/Repeat Remote Volume Control MusicMode display Relay selection Volume Control Routing Limits Call Override Relays StationOverride Relays Call Station selectionDirect Routing Routing settingRouting Limits Current zone displayClearing Memory Clear Memory Control Alarm ModePower-on delay System down 14.2 ConfirmationFlexible F-keys Selection Call Station input number Extended Call StationExtended Call Station Programming 17.3 ConfirmationMPL if IE R C ONF IG Xxxxxx R MA N Singl E AMP LIF IE RS MU SIC Z on ES SE T ROU TIN G VIA Inst AL LE R P Rogr AM EL ECT PR Ogram CT L AL AR M MOD E SEL ECT FUN Ction MIC ROP Hone Priority Page Page 3922 988 33415 20/97
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